/*
 * jPOS Project [http://jpos.org]
 * Copyright (C) 2000-2015 Alejandro P. Revilla
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package org.jpos.security;

/**
 * Indicate padding method for encripting data (e.g. pin block) used by the issuer.
 * <br>
 *
 * @author Robert Demski
 * @version $Revision$ $Date$
 */
public enum PaddingMethod {

	/**
	 * VISA padding
	 * <p/>
	 * Prefix data with byte containing the length of that data and then
	 * force ISO/IEC 9797-1 padding method 2 even if length of padded data
	 * are multiply of eight.
	 */
	VSDC,

	/**
	 * Common Core Definitions padding.
	 * <p/>
	 * Force ISO/IEC 9797-1 padding method 2 even if length of padded data
	 * are multiply of eight.
	 * In addition use the Cipher Block Chaining (CBC) Mode of Triple DES algotithm
	 * Described in EMV v4.2 Book 2 - June 2008, section 9.3.3
	 */
	CCD,

	/**
	 * M/Chip 4 padding.
	 * Used ISO/IEC 9797-1 padding method 2
	 */
	MCHIP

}
